diff --git a/src/classes/PMsrHandler.cpp b/src/classes/PMsrHandler.cpp
index 81fa385e..027df28d 100644
--- a/src/classes/PMsrHandler.cpp
+++ b/src/classes/PMsrHandler.cpp
@@ -4807,6 +4807,8 @@ Bool_t PMsrHandler::HandlePlotEntry(PMsrLines &lines)
                 param.fRRFPhase = fParam[no-1].fValue;
               }
             }
+          } else {
+            error = true;
           }
         }
       } else if (iter1->fLine.Contains("rrf_packing", TString::kIgnoreCase)) {